EP1375117A2 - Paroi de grande rigidité pour produits en matière synthétique moulés - Google Patents

Paroi de grande rigidité pour produits en matière synthétique moulés Download PDF

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Publication number
EP1375117A2
EP1375117A2 EP03011821A EP03011821A EP1375117A2 EP 1375117 A2 EP1375117 A2 EP 1375117A2 EP 03011821 A EP03011821 A EP 03011821A EP 03011821 A EP03011821 A EP 03011821A EP 1375117 A2 EP1375117 A2 EP 1375117A2
Authority
EP
European Patent Office
Prior art keywords
ribs
plate
molded plastic
base
plastic part
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP03011821A
Other languages
German (de)
English (en)
Other versions
EP1375117A3 (fr
Inventor
John Francis Marentette
David Marion
Jason Pettipiece
Jianrui Ye
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Continental Tire Canada Inc
Original Assignee
Siemens VDO Automotive Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens VDO Automotive Inc filed Critical Siemens VDO Automotive Inc
Publication of EP1375117A2 publication Critical patent/EP1375117A2/fr
Publication of EP1375117A3 publication Critical patent/EP1375117A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112Single lapped joints
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/114Single butt joints
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/301Three-dimensional joints, i.e. the joined area being substantially non-flat
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/50General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/50General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5346Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/735General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the extensive physical properties of the parts to be joined
    • B29C66/7352Thickness, e.g. very thin
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/06Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using friction, e.g. spin welding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/20Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror"
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2007/00Flat articles, e.g. films or sheets
    • B29L2007/002Panels; Plates; Sheets
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2024/00Articles with hollow walls
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/30Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3005Body finishings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/60Multitubular or multicompartmented articles, e.g. honeycomb
    • B29L2031/608Honeycomb structures
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/748Machines or parts thereof not otherwise provided for
    • B29L2031/749Motors
    • B29L2031/7492Intake manifold
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/24Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24149Honeycomb-like
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/24Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/24562Interlaminar spaces
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/24Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24744Longitudinal or transverse tubular cavity or cell

Definitions

  • This invention relates to the provision of a stiff molded plastic wall formed by utilizing two spaced plastic plates, wherein at least one of the plates is ribbed and welded to the other.
  • Plastics are becoming utilized for more and more parts. As known, plastic parts are typically molded in a plastic mold. While the use of plastics to form parts does have a number of benefits, it would still be desirable to increase certain design features. As an example, in many applications the weight of the final molded part would be desirably reduced. In particular, in automotive applications, reduction of the weight of the final part is a design goal. However, merely limiting the amount of plastic in the final part will also result in the walls of the part being less stiff than may be desirable.
  • Air induction or air intake manifold components are particularly challenged in this regard.
  • a minimum stiffness is required that can resist these challenges.
  • the present invention provides apparatus and method as recited in the appended claims.
  • a molded plastic part is formed of two spaced plates.
  • the two spaced plates are welded together at a plurality of ribs formed on one of the two plates. That is, one of the two plastic plates is molded to have ribs extending away from a base. These ribs are welded to a base on the other plate.
  • the ribs are formed into a cross or honeycomb shape.
  • the resultant plastic part has much stiffer walls than a plastic part having a single solid wall formed of the equivalent weight.
  • the height of the rib is greater than the thickness of the base from which the rib extends, and is further greater than the thickness of the rib.
  • the thickness of the base is less than half the height of the rib.
  • the thickness of the rib is preferably less than one-third the height of the rib. That is, the rib extends for a relatively great height when compared to the thickness of its base, or the thickness of the rib.
  • the resultant final molded part has greater stiffness when compared to the prior art for an equivalent weight part.
  • Figure 1 shows a plastic molded part 20 which is illustrated as an air intake manifold. It should be understood that the present invention does provide a method and final plastic part that can be utilized for many other applications. As shown, a first plate 22 is welded to a second plate 24 to form a wall 25 for the part 20. Notably, as can be seen, the wall may be somewhat curved, or have a contour as is desired for the final part. That is, "plate” should not be interpreted to be planar.
  • a base 26 for the plate 22 has ribs 28 extending away and toward the plate 24.
  • the plate 22 has ribs 28 and 30 that cross to form a honeycomb shape.
  • ribs can be easily molded with the base 26 as a single part.
  • Figure 3A is a cross-sectional view along line 3-3. As shown, the base has a width w while the ribs 28 and 30 have a height h. Further, the ribs have a thickness t. While the ribs have been shown to have a uniform height and uniform thickness, it is of course within the scope of this invention to vary these dimensions locally to achieve a particular design function.
  • the height of the ribs 28 and 30 is relatively great when compared to the thickness w of the base 26, or the thickness t of the ribs 28 and 30.
  • the thickness of the base in one application was 3 mm, with the thickness of the rib t being 2 mm and the height of the rib being 6 mm.
  • Other example dimensions are shown in a table as set forth at Figure 3B.
  • the second plate 24 has a thickness that is preferably less than the thickness of the base 26 of plate 22.
  • the dimensions are exemplary, and the invention would extend beyond any particular dimension.
  • the thickness w of base 26 is less than the height h of ribs 28 or 30.
  • the height of the ribs is at least twice as much as the thickness w.
  • the thickness h of the ribs 28 and 30 in the preferred dimensions, the height of the rib h is at least three times the thickness w.
  • the thickness of the second plate 24 is less than the thickness w of the base 26.
  • the plate 22 is welded along surfaces 32 and 34 to the plate 24.
  • the ribs 28 and 30 thus contact and provide stiffness to the combined part.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)
EP03011821A 2002-06-28 2003-05-26 Paroi de grande rigidité pour produits en matière synthétique moulés Withdrawn EP1375117A3 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US39214902P 2002-06-28 2002-06-28
US392149P 2002-06-28
US10/413,122 US6902778B2 (en) 2002-06-28 2003-04-14 High stiffness plastic wall for molded plastic products
US413122 2003-04-14

Publications (2)

Publication Number Publication Date
EP1375117A2 true EP1375117A2 (fr) 2004-01-02
EP1375117A3 EP1375117A3 (fr) 2004-04-14

Family

ID=29718543

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03011821A Withdrawn EP1375117A3 (fr) 2002-06-28 2003-05-26 Paroi de grande rigidité pour produits en matière synthétique moulés

Country Status (2)

Country Link
US (1) US6902778B2 (fr)
EP (1) EP1375117A3 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7354354B2 (en) * 2004-12-17 2008-04-08 Integran Technologies Inc. Article comprising a fine-grained metallic material and a polymeric material
US20060134402A1 (en) * 2004-12-20 2006-06-22 Uwe Wilkenhoener Process for the preparation of powder coating compositions
CN101045346A (zh) * 2006-03-30 2007-10-03 冷鹭浩 一种超声波焊接结构的塑料复合板
DE202006011026U1 (de) * 2006-07-14 2007-12-06 Mann + Hummel Gmbh Ansaugeinrichtung für eine Brennkraftmaschine

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1209725B (de) * 1960-03-11 1966-01-27 Hans Joachim Dietzsch G M B H Verfahren zur Oberflaechenbehandlung eines Koerpers aus gebuendelten Hohlfaeden
US3509005A (en) * 1967-03-02 1970-04-28 Du Pont Ribbed structures of thermoplastic resin
US3741857A (en) * 1970-11-20 1973-06-26 Asahi Chemical Ind Composite light weight board and manufacture thereof
US4172749A (en) * 1978-03-29 1979-10-30 Primex Plastics Corp. subs. of ICC Industries Inc. Shaped articles formed from thermoplastic sheeting containing sealed passageways
DE3107838A1 (de) * 1981-03-02 1982-09-16 Isar GFK Kunststofftechnik GmbH, 8801 Wörnitz Querschnittsaufbau fuer kunststoffrohr mit hoher biegesteifigkeit
JPH06179448A (ja) * 1992-12-10 1994-06-28 Idemitsu Petrochem Co Ltd 合成樹脂製パレットおよびその製造方法および成形用金型
JPH06278660A (ja) * 1993-03-30 1994-10-04 Mazda Motor Corp 自動車のキャビン構造
EP0754540A2 (fr) * 1995-07-21 1997-01-22 Hardigg Industries, Inc. Panneaux en matière plastique soudée ainsi que procédé pour leur fabrication
BE1012382A3 (nl) * 1999-01-13 2000-10-03 Vandevelde Michel Constructie-methode met kunststofpanelen, en kunststofpanelen bestemd voor een dergelijke methode.
EP1245478A1 (fr) * 2001-03-28 2002-10-02 Webasto Vehicle Systems International GmbH Elément extérieur d'une carrosserie d'automobile
FR2828132A1 (fr) * 2001-08-02 2003-02-07 Gaillon Materiau en plaque ou en feuille a structure dite "alveolaire"
WO2003022664A1 (fr) * 2001-09-05 2003-03-20 Basf Aktiengesellschaft Composants composites profiles creux

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US3589972A (en) * 1969-06-16 1971-06-29 Woodall Industries Inc Hollow structure
US3664906A (en) * 1970-01-26 1972-05-23 Du Pont Structural panel of ribbed structures of thermoplastic resin
US3935357A (en) * 1973-03-27 1976-01-27 I. S. A. P. S.P.A. Hollow extruded plastic strips for packings
SE391109B (sv) 1976-04-14 1977-02-07 Nordfor Ab Sett vid tredfellning jemte anordning for genomforande av settet
US5182158A (en) * 1990-02-02 1993-01-26 Schaeffer Bernarr C Lightweight sandwich panel
US5487930A (en) * 1991-10-03 1996-01-30 Tolo, Inc. Three structure structural element with interlocking ribbing

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1209725B (de) * 1960-03-11 1966-01-27 Hans Joachim Dietzsch G M B H Verfahren zur Oberflaechenbehandlung eines Koerpers aus gebuendelten Hohlfaeden
US3509005A (en) * 1967-03-02 1970-04-28 Du Pont Ribbed structures of thermoplastic resin
US3741857A (en) * 1970-11-20 1973-06-26 Asahi Chemical Ind Composite light weight board and manufacture thereof
US4172749A (en) * 1978-03-29 1979-10-30 Primex Plastics Corp. subs. of ICC Industries Inc. Shaped articles formed from thermoplastic sheeting containing sealed passageways
DE3107838A1 (de) * 1981-03-02 1982-09-16 Isar GFK Kunststofftechnik GmbH, 8801 Wörnitz Querschnittsaufbau fuer kunststoffrohr mit hoher biegesteifigkeit
JPH06179448A (ja) * 1992-12-10 1994-06-28 Idemitsu Petrochem Co Ltd 合成樹脂製パレットおよびその製造方法および成形用金型
JPH06278660A (ja) * 1993-03-30 1994-10-04 Mazda Motor Corp 自動車のキャビン構造
EP0754540A2 (fr) * 1995-07-21 1997-01-22 Hardigg Industries, Inc. Panneaux en matière plastique soudée ainsi que procédé pour leur fabrication
BE1012382A3 (nl) * 1999-01-13 2000-10-03 Vandevelde Michel Constructie-methode met kunststofpanelen, en kunststofpanelen bestemd voor een dergelijke methode.
EP1245478A1 (fr) * 2001-03-28 2002-10-02 Webasto Vehicle Systems International GmbH Elément extérieur d'une carrosserie d'automobile
FR2828132A1 (fr) * 2001-08-02 2003-02-07 Gaillon Materiau en plaque ou en feuille a structure dite "alveolaire"
WO2003022664A1 (fr) * 2001-09-05 2003-03-20 Basf Aktiengesellschaft Composants composites profiles creux

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 0185, no. 21 (M-1681), 30 September 1994 (1994-09-30) & JP 06 179448 A (IDEMITSU PETROCHEM CO LTD), 28 June 1994 (1994-06-28) *
PATENT ABSTRACTS OF JAPAN vol. 1995, no. 01, 28 February 1995 (1995-02-28) -& JP 06 278660 A (MAZDA MOTOR CORP), 4 October 1994 (1994-10-04) *

Also Published As

Publication number Publication date
US20040001939A1 (en) 2004-01-01
US6902778B2 (en) 2005-06-07
EP1375117A3 (fr) 2004-04-14

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